2019 8th International Conference on Information and Communication Technologies (ICICT)
An infant incubator is meant for the neonatal who are born premature due to medical complications... more An infant incubator is meant for the neonatal who are born premature due to medical complications. This paper aims to design an android based infant incubator which could be accessed and controlled via the android application by the health professional over the Internet. The system designed is able to collect the information of incubators environment and store it on an online server. The system could play a significant role in reducing the mortality rate of the premature infants in remote areas.
Additional file 1: Table S2. Schematic overview of regions with an altered functional connectivit... more Additional file 1: Table S2. Schematic overview of regions with an altered functional connectivity to the examined networks throughout 25 studies of interictal migraine compared with healthy volunteers
This paper describes the development of a fully automated measurement software for antenna radiat... more This paper describes the development of a fully automated measurement software for antenna radiation pattern measurements in a Compact Antenna Test Range (CATR). The CATR has a frequency range from 2-40 GHz and the measurement hardware includes a Network Analyzer for transmitting and Receiving the microwave signal and a Positioner controller to control the motion of the Styrofoam column. The measurement process includes Calibration of CATR with a Standard Gain Horn (SGH) antenna followed by Gain versus angle measurement of the Antenna under test (AUT). The software is designed to control a variety of microwave transmitter / receiver and two axis Positioner controllers through the standard General Purpose interface bus (GPIB) interface. Addition of new Network Analyzers is supported through a slight modification of hardware control module. Time-domain gating is implemented to remove the unwanted signals and get the isolated response of AUT. The gated response of the AUT is compared w...
2021 15th International Conference on Open Source Systems and Technologies (ICOSST)
Brain tumors are one of the most rapidly spreading types of tumors known to humans. The worst and... more Brain tumors are one of the most rapidly spreading types of tumors known to humans. The worst and most dangerous type of tumor is a brain tumor. However, if diagnosed early, patients with brain tumors have a higher chance of survival acknowledgments to simple and inexpensive treatments. Expert radiologists, equipment, and biopsies are used in the traditional method of diagnosing a brain tumor. Machine learning has proved to deliver cutting-edge methods for early identification of brain tumors with better accuracies, avoiding costly diagnoses and unnecessary biopsies and assisting radiologists. Using a machine learning approach, this study proposes a technique for brain tumor classification and segmentation as HGG and LGG (High-Grade Glioma & Low-Grade Glioma). One of the most inflexible and innovative challenges confronting artificial intelligence approaches is medical diagnostics utilizing image processing and machine learning. The project involves the preprocessing, edge detection, segmentation, feature extraction, and classification of MRI brain images. The preprocessing is implemented by using median filter and canny edge detection is adapted in edge detection stage to inspect the best performing edge detector in terms of accuracy. Then, the MR image is segmented by K-means clustering technique. However, some of the important features are extracted including GLCM features for texture identification. Finally, in the classification phase, the Support Vector Machine (SVM) and k-nearest neighbors (KNN) classifiers are used. After using these classifiers, we distinguished the tumors as HGG or LGG. To determine whether an MRI image of the brain has a tumor and to classify as HGG or LGG, a machine learning methodology is applied. The aim is to develop a system with better tumor detection from MRI images to be used as a tool in real time by employing machine learning approach. The proposed method is validated using the MATLAB environment on the available BRATS 2019 dataset. Then, to illustrate the performance of SVM and KNN classifiers, a confusion matrix is frequently used. The SVM classifier achieves a maximum accuracy of 92%.
IEEE Transactions on Microwave Theory and Techniques
This article proposes a novel inverted-E topology for the design of phase shifters and multibit p... more This article proposes a novel inverted-E topology for the design of phase shifters and multibit phase shifters. The novel phase shifter consists of a <inline-formula> <tex-math notation="LaTeX">$50~\Omega $ </tex-math></inline-formula> main transmission line (MTL) symmetrically loaded with equally spaced three open-/short-circuited stubs via P-I-N switching diodes. The stubs provide the needed susceptances to achieve a phase shift with large value range. Thanks to the design flexibility of the topology, 2<sup>N</sup>-1 sets of stubs can share the same MTL, providing <inline-formula> <tex-math notation="LaTeX">$2^{n}$ </tex-math></inline-formula> phase states of an N-bit phase shifter. Design theory and performance analysis of the design variables are presented, followed by the analysis and simulation of four 22.5°, 45°, 90°, and 180° phase shifters. For validation and comparison, two typical 45° and 90° phase shifters and a 3-bit phase shifter, providing eight distinct phase states, have been fabricated and measured. The measured results show good agreement with analysis and simulation. In comparison to its traditional counterparts, the novel design yields a highly compact phase shifter because the separation between the loading elements on the MTL can be less than quarter wavelength, whereas low insertion loss is achieved because the diodes are loaded to the branches. In addition, multibit phase shifter in single unit can be realized with much shorter length and lower insertion loss.
Objective: To determine the frequency and demographic features of subjects with Brugada-Type ECG ... more Objective: To determine the frequency and demographic features of subjects with Brugada-Type ECG pattern in apparently healthy young population. Study Design: Cross sectional descriptive study. Methods: This study was conducted at School of Nursing Hayatabad Medical Complex,
2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)
In this work we applied real-time classification of prosthetic fingers movements using surface el... more In this work we applied real-time classification of prosthetic fingers movements using surface electromyography (sEMG) data. We employed support vector machine (SVM) for classification of fingers movements. SVM has some benefits over other classification techniques e.g. 1) it avoids overfitting, 2) handles nonlinear data efficiently and 3) it is stable. SVM is employed on Raspberry pi which is a low-cost, credit-card sized computer with high processing power. Moreover, it supports Python which makes it easy to build projects and it has multiple interfaces available. In this paper, our aim is to perform classification of prosthetic hand relative to human fingers. To assess the performance of our framework we tested it on ten healthy subjects. Our framework was able to achieve mean classification accuracy of 78%.
Journal of Ayub Medical College, Abbottabad : JAMC, 2009
BACKGROUND Drug therapy is mostly employed in the management of supraventricular tachycardias (SV... more BACKGROUND Drug therapy is mostly employed in the management of supraventricular tachycardias (SVTs). However, radiofrequency catheter ablation has been found to be highly effective and safe in the treatment of SVTs. The current study is aimed at sharing our experience of 320 patients who presented with SVTs, and were treated with radiofrequency catheter ablation. METHODS This descriptive study was carried out in the Cardiac Electrophysiology Laboratory of Lady Reading Hospital, Peshawar from October 2006 to December 2009. Standard 4-wire electrophysiological study was carried out to identify the mechanism of SVT in 320 consecutive patients. Radiofrequency catheter ablation was used to interrupt the tachycardia circuit. RESULTS Out of a total 320 patients who underwent electrophysiologic study, 168 were found to have atrioventricular nodal re-entry as underlying mechanism; 121 patients were having accessory pathway responsible for re-entry (of these 95 presented with orthodromic rec...
Vehicle localization on digital map has outmost importance in the autonomous vehicle development.... more Vehicle localization on digital map has outmost importance in the autonomous vehicle development. Different sensors existing in the vehicle can be utilized to develop trajectory using data fusion technologies. The trajectory can be used to localize a vehicle on the digital map. The book is a successful endeavor in that direction. It also explains different approach in correcting orientation errors in the vehicle. This book is also suitable for professionals looking into the field of driver assistance system and autonomous driving.
2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)
The structure of segmented rotor or modular rotor is compared with the salient rotor pole of alte... more The structure of segmented rotor or modular rotor is compared with the salient rotor pole of alternate circumferential and radial magnetization permanent magnet flux (AlCiRaF) permanent magnet flux switching machine (PMFSM). The comparison is made based on topology, material and conditions setting furthermore properties setting. 2D finite element analysis (FEA) is used to analyze the performance in terms of output torque and power. After analyzing simulated results, it concluded that the modular rotor PMFSM accomplishes the highest torque 33.30Nm at maximum current density 30 Arms/mm2 which is better than AlCiRaF PMFSM.
Stair climbing is one of the unique exercises which is frequently used and helps in maintaining t... more Stair climbing is one of the unique exercises which is frequently used and helps in maintaining the leg muscles active and healthy. However, if the height of the stair is not optimum, it may cause serious injuries due to increased or decreased knee angle that may damage the human leg muscles such as quadriceps and hamstring involved in its proper function. A stair climbing leg model PASCO ME-7001 was designed to find an optimum knee angle for reducing the maximum chances of leg muscle fatigue and injuries by using the force sensors. Resultant forces applied on leg muscles i.e. hamstring and quadriceps at 4 different average angles: 40o, 57o, 68o, and 76o for four different stair heights: 3", 5", 7", and 9" respectively were studied graphically during ascending stairs. Also, the energy consumption of quadriceps is calculated for the desired 4 average angles. The optimum knee angle maybe 57-68 degrees at 5"-7" stair height for both flexion and extension o...
A look at the realism in Clark's 1995 film, Kids. The film is shot in the noninvasive style o... more A look at the realism in Clark's 1995 film, Kids. The film is shot in the noninvasive style of Cinema Verite which declines to cast judgement on the controversial and morally questionable content. This essay examines the effects of this style and its addition to or detraction from realism.
The decision of the Minister of Transportation of the Republic of Indonesia Number 132 PM is a re... more The decision of the Minister of Transportation of the Republic of Indonesia Number 132 PM is a regulation that regulates the operation of the terminal covering 3 things, namely planning, operation, and supervision. The Type A Gambut Barakat Terminal which has been completed in 2014 is intended for AKAP to operate in this type A terminal. Before this type A Gambut Barakat terminal was built AKAP operates in type B terminal km 6 Banjarmasin City. In this study type A Gambut Barakat terminal was chosen as the object of research in looking at the implementation of the operation policy. The research method used is a descriptive qualitative case study. The speakers in this study were 4 people, namely KORSATPEL Terminal type A Gambut Barakat km 17, the Chief of UPTD terminal type B km 6 Banjarmasin, the City Transport entrepreneurs, and Organda km 6 General Director. The focus of this research was the accompanying instruments implementation, namely the interests that are affected, the type...
Positive classroom environment is a good environment to make the goals of learning process can be... more Positive classroom environment is a good environment to make the goals of learning process can be achieved. In building a positive classroom environment, teacher are may not merely use of teachers’ roles. Cooperative learning can help the teacher in classroom learning activities. In small groups, students can share and complete the goal of learning together with other students in the same class. The research is conducted on the even semester of 2018/2019 academic year in SMP Panca Jaya Surabaya. The students were given a questionnaire about Positive Classroom Environment and Cooperative Learning Strategy. Then all the students were given reading test to know the level of reading comprehension of each student. Using multiple regression analysis, it was proved at a significant level 0.004. Those variables have a medium positive correlation. Students who have a high level positive classroom environment and cooperative learning strategy have a good achievement. Thus, the alternative hyp...
Flux switching machines (FSM) falls into advance category of synchronous machines having benefits... more Flux switching machines (FSM) falls into advance category of synchronous machines having benefits of both switch reluctance and permanent magnet (PM) synchronous motor. Although, lack of PM on the rotor have numerous advantages in terms of simplicity of construction and robustness, but rotational field magneto motive force MMF cannot generate by their rotor as a trade-off, which is the base of field oriented control (FOC) in synchronous motors. Instead, these machines works on the principle of flux switching which made the FOC application in FSM significantly complex. But with the variation in rotor position, flux linkage in the phase also varies sinusoidally. By considering this phenomenon, this paper present a mechanism to implement FOC based on sine pulse width modulation (SPWM) technic for single phase 12S-6P field excited FSM. Experimental results verified successful implementation of the algorithm on the designed prototype of FEFSM. Additionally, performance wise, proposed alg...
2019 15th International Conference on Emerging Technologies (ICET)
The medical device used for auscultation is known as a stethoscope. An ordinary acoustics-based s... more The medical device used for auscultation is known as a stethoscope. An ordinary acoustics-based stethoscope is limited in its ability to provide high-quality sound in noisy environments. To deal with this problem digital stethoscopes have been developed. A digital stethoscope enables the use of advanced noise cancellation techniques resulting in high- quality sound compared to a conventional stethoscope. Currently, conventional stethoscopes are commonly used by physicians due to their low cost compared to the digital ones. This paper presents an Arduino DUE based cost-effective digital stethoscope with real-time realization of cardiac sounds over a graphic display and logging capabilities for post-processing in powerful numerical software such as MATLAB. The proposed design is considerably low-cost compared to the commercially available digital stethoscopes while providing $2.375 \pm 0.222$ dB better signal-to-noise ratio.
2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)
In this paper the electromagnetic flux analysis of dual stator hybrid excitation flux switching m... more In this paper the electromagnetic flux analysis of dual stator hybrid excitation flux switching machines (DS HESFMs) with segmented rotor are presented. The objective of the research is to develop an electric motor for the driven electromechanical actuator meant to use for aerospace applications. The benefit of designing a machine with directly driven system is to entirely remove the transitional gear box arrangements with having lesser component count and reduced jamming possibility. The proposed design of DS HEFSM with segmental rotor is examined in this paper as a potential solution for actuators. The key purposes of the design are to reduce the overall weight, volume and enhance fault tolerance ability. The proposed DS HESFSM design shows simple structure, that includes six number of field excitation coils (FECs) are inserted in outer stator slots with six armature coils (ACs) while, six permanent magnets (PMs) are situated in the inner stator. Besides, DS HESFM structure is investigated at no load and load conditions using "commercial 2D FEA package, JMAG-designer ver. 14.0," released by JSOL Corporation.
2021 International Conference on Artificial Intelligence (ICAI)
This article presents a brief review of machine learning/classification strategies for the classi... more This article presents a brief review of machine learning/classification strategies for the classification of EMG signals in the context of Myoelectric controlled prosthesis. It focuses on certain parameters adopted for machine learning such as selecting the size of windows and frequency range adopted for different filters, the filters of three domains including time domain, frequency domain and time-frequency domain, and the classifiers commonly used and that of different statistical tests performed for evaluating the significant difference between the EMG and performance of features and classifiers. Also, the comparative analysis of different EMG related studies has been done in this article. The paper would contribute to selecting the parameters before evaluating the results using machine learning. The criteria for selection of the papers to present the review is set by looking at the frequently used features and classifiers that have been used by the researchers for EMG signals analysis in the past 2 decades.
2019 8th International Conference on Information and Communication Technologies (ICICT)
An infant incubator is meant for the neonatal who are born premature due to medical complications... more An infant incubator is meant for the neonatal who are born premature due to medical complications. This paper aims to design an android based infant incubator which could be accessed and controlled via the android application by the health professional over the Internet. The system designed is able to collect the information of incubators environment and store it on an online server. The system could play a significant role in reducing the mortality rate of the premature infants in remote areas.
Additional file 1: Table S2. Schematic overview of regions with an altered functional connectivit... more Additional file 1: Table S2. Schematic overview of regions with an altered functional connectivity to the examined networks throughout 25 studies of interictal migraine compared with healthy volunteers
This paper describes the development of a fully automated measurement software for antenna radiat... more This paper describes the development of a fully automated measurement software for antenna radiation pattern measurements in a Compact Antenna Test Range (CATR). The CATR has a frequency range from 2-40 GHz and the measurement hardware includes a Network Analyzer for transmitting and Receiving the microwave signal and a Positioner controller to control the motion of the Styrofoam column. The measurement process includes Calibration of CATR with a Standard Gain Horn (SGH) antenna followed by Gain versus angle measurement of the Antenna under test (AUT). The software is designed to control a variety of microwave transmitter / receiver and two axis Positioner controllers through the standard General Purpose interface bus (GPIB) interface. Addition of new Network Analyzers is supported through a slight modification of hardware control module. Time-domain gating is implemented to remove the unwanted signals and get the isolated response of AUT. The gated response of the AUT is compared w...
2021 15th International Conference on Open Source Systems and Technologies (ICOSST)
Brain tumors are one of the most rapidly spreading types of tumors known to humans. The worst and... more Brain tumors are one of the most rapidly spreading types of tumors known to humans. The worst and most dangerous type of tumor is a brain tumor. However, if diagnosed early, patients with brain tumors have a higher chance of survival acknowledgments to simple and inexpensive treatments. Expert radiologists, equipment, and biopsies are used in the traditional method of diagnosing a brain tumor. Machine learning has proved to deliver cutting-edge methods for early identification of brain tumors with better accuracies, avoiding costly diagnoses and unnecessary biopsies and assisting radiologists. Using a machine learning approach, this study proposes a technique for brain tumor classification and segmentation as HGG and LGG (High-Grade Glioma & Low-Grade Glioma). One of the most inflexible and innovative challenges confronting artificial intelligence approaches is medical diagnostics utilizing image processing and machine learning. The project involves the preprocessing, edge detection, segmentation, feature extraction, and classification of MRI brain images. The preprocessing is implemented by using median filter and canny edge detection is adapted in edge detection stage to inspect the best performing edge detector in terms of accuracy. Then, the MR image is segmented by K-means clustering technique. However, some of the important features are extracted including GLCM features for texture identification. Finally, in the classification phase, the Support Vector Machine (SVM) and k-nearest neighbors (KNN) classifiers are used. After using these classifiers, we distinguished the tumors as HGG or LGG. To determine whether an MRI image of the brain has a tumor and to classify as HGG or LGG, a machine learning methodology is applied. The aim is to develop a system with better tumor detection from MRI images to be used as a tool in real time by employing machine learning approach. The proposed method is validated using the MATLAB environment on the available BRATS 2019 dataset. Then, to illustrate the performance of SVM and KNN classifiers, a confusion matrix is frequently used. The SVM classifier achieves a maximum accuracy of 92%.
IEEE Transactions on Microwave Theory and Techniques
This article proposes a novel inverted-E topology for the design of phase shifters and multibit p... more This article proposes a novel inverted-E topology for the design of phase shifters and multibit phase shifters. The novel phase shifter consists of a <inline-formula> <tex-math notation="LaTeX">$50~\Omega $ </tex-math></inline-formula> main transmission line (MTL) symmetrically loaded with equally spaced three open-/short-circuited stubs via P-I-N switching diodes. The stubs provide the needed susceptances to achieve a phase shift with large value range. Thanks to the design flexibility of the topology, 2<sup>N</sup>-1 sets of stubs can share the same MTL, providing <inline-formula> <tex-math notation="LaTeX">$2^{n}$ </tex-math></inline-formula> phase states of an N-bit phase shifter. Design theory and performance analysis of the design variables are presented, followed by the analysis and simulation of four 22.5°, 45°, 90°, and 180° phase shifters. For validation and comparison, two typical 45° and 90° phase shifters and a 3-bit phase shifter, providing eight distinct phase states, have been fabricated and measured. The measured results show good agreement with analysis and simulation. In comparison to its traditional counterparts, the novel design yields a highly compact phase shifter because the separation between the loading elements on the MTL can be less than quarter wavelength, whereas low insertion loss is achieved because the diodes are loaded to the branches. In addition, multibit phase shifter in single unit can be realized with much shorter length and lower insertion loss.
Objective: To determine the frequency and demographic features of subjects with Brugada-Type ECG ... more Objective: To determine the frequency and demographic features of subjects with Brugada-Type ECG pattern in apparently healthy young population. Study Design: Cross sectional descriptive study. Methods: This study was conducted at School of Nursing Hayatabad Medical Complex,
2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)
In this work we applied real-time classification of prosthetic fingers movements using surface el... more In this work we applied real-time classification of prosthetic fingers movements using surface electromyography (sEMG) data. We employed support vector machine (SVM) for classification of fingers movements. SVM has some benefits over other classification techniques e.g. 1) it avoids overfitting, 2) handles nonlinear data efficiently and 3) it is stable. SVM is employed on Raspberry pi which is a low-cost, credit-card sized computer with high processing power. Moreover, it supports Python which makes it easy to build projects and it has multiple interfaces available. In this paper, our aim is to perform classification of prosthetic hand relative to human fingers. To assess the performance of our framework we tested it on ten healthy subjects. Our framework was able to achieve mean classification accuracy of 78%.
Journal of Ayub Medical College, Abbottabad : JAMC, 2009
BACKGROUND Drug therapy is mostly employed in the management of supraventricular tachycardias (SV... more BACKGROUND Drug therapy is mostly employed in the management of supraventricular tachycardias (SVTs). However, radiofrequency catheter ablation has been found to be highly effective and safe in the treatment of SVTs. The current study is aimed at sharing our experience of 320 patients who presented with SVTs, and were treated with radiofrequency catheter ablation. METHODS This descriptive study was carried out in the Cardiac Electrophysiology Laboratory of Lady Reading Hospital, Peshawar from October 2006 to December 2009. Standard 4-wire electrophysiological study was carried out to identify the mechanism of SVT in 320 consecutive patients. Radiofrequency catheter ablation was used to interrupt the tachycardia circuit. RESULTS Out of a total 320 patients who underwent electrophysiologic study, 168 were found to have atrioventricular nodal re-entry as underlying mechanism; 121 patients were having accessory pathway responsible for re-entry (of these 95 presented with orthodromic rec...
Vehicle localization on digital map has outmost importance in the autonomous vehicle development.... more Vehicle localization on digital map has outmost importance in the autonomous vehicle development. Different sensors existing in the vehicle can be utilized to develop trajectory using data fusion technologies. The trajectory can be used to localize a vehicle on the digital map. The book is a successful endeavor in that direction. It also explains different approach in correcting orientation errors in the vehicle. This book is also suitable for professionals looking into the field of driver assistance system and autonomous driving.
2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)
The structure of segmented rotor or modular rotor is compared with the salient rotor pole of alte... more The structure of segmented rotor or modular rotor is compared with the salient rotor pole of alternate circumferential and radial magnetization permanent magnet flux (AlCiRaF) permanent magnet flux switching machine (PMFSM). The comparison is made based on topology, material and conditions setting furthermore properties setting. 2D finite element analysis (FEA) is used to analyze the performance in terms of output torque and power. After analyzing simulated results, it concluded that the modular rotor PMFSM accomplishes the highest torque 33.30Nm at maximum current density 30 Arms/mm2 which is better than AlCiRaF PMFSM.
Stair climbing is one of the unique exercises which is frequently used and helps in maintaining t... more Stair climbing is one of the unique exercises which is frequently used and helps in maintaining the leg muscles active and healthy. However, if the height of the stair is not optimum, it may cause serious injuries due to increased or decreased knee angle that may damage the human leg muscles such as quadriceps and hamstring involved in its proper function. A stair climbing leg model PASCO ME-7001 was designed to find an optimum knee angle for reducing the maximum chances of leg muscle fatigue and injuries by using the force sensors. Resultant forces applied on leg muscles i.e. hamstring and quadriceps at 4 different average angles: 40o, 57o, 68o, and 76o for four different stair heights: 3", 5", 7", and 9" respectively were studied graphically during ascending stairs. Also, the energy consumption of quadriceps is calculated for the desired 4 average angles. The optimum knee angle maybe 57-68 degrees at 5"-7" stair height for both flexion and extension o...
A look at the realism in Clark's 1995 film, Kids. The film is shot in the noninvasive style o... more A look at the realism in Clark's 1995 film, Kids. The film is shot in the noninvasive style of Cinema Verite which declines to cast judgement on the controversial and morally questionable content. This essay examines the effects of this style and its addition to or detraction from realism.
The decision of the Minister of Transportation of the Republic of Indonesia Number 132 PM is a re... more The decision of the Minister of Transportation of the Republic of Indonesia Number 132 PM is a regulation that regulates the operation of the terminal covering 3 things, namely planning, operation, and supervision. The Type A Gambut Barakat Terminal which has been completed in 2014 is intended for AKAP to operate in this type A terminal. Before this type A Gambut Barakat terminal was built AKAP operates in type B terminal km 6 Banjarmasin City. In this study type A Gambut Barakat terminal was chosen as the object of research in looking at the implementation of the operation policy. The research method used is a descriptive qualitative case study. The speakers in this study were 4 people, namely KORSATPEL Terminal type A Gambut Barakat km 17, the Chief of UPTD terminal type B km 6 Banjarmasin, the City Transport entrepreneurs, and Organda km 6 General Director. The focus of this research was the accompanying instruments implementation, namely the interests that are affected, the type...
Positive classroom environment is a good environment to make the goals of learning process can be... more Positive classroom environment is a good environment to make the goals of learning process can be achieved. In building a positive classroom environment, teacher are may not merely use of teachers’ roles. Cooperative learning can help the teacher in classroom learning activities. In small groups, students can share and complete the goal of learning together with other students in the same class. The research is conducted on the even semester of 2018/2019 academic year in SMP Panca Jaya Surabaya. The students were given a questionnaire about Positive Classroom Environment and Cooperative Learning Strategy. Then all the students were given reading test to know the level of reading comprehension of each student. Using multiple regression analysis, it was proved at a significant level 0.004. Those variables have a medium positive correlation. Students who have a high level positive classroom environment and cooperative learning strategy have a good achievement. Thus, the alternative hyp...
Flux switching machines (FSM) falls into advance category of synchronous machines having benefits... more Flux switching machines (FSM) falls into advance category of synchronous machines having benefits of both switch reluctance and permanent magnet (PM) synchronous motor. Although, lack of PM on the rotor have numerous advantages in terms of simplicity of construction and robustness, but rotational field magneto motive force MMF cannot generate by their rotor as a trade-off, which is the base of field oriented control (FOC) in synchronous motors. Instead, these machines works on the principle of flux switching which made the FOC application in FSM significantly complex. But with the variation in rotor position, flux linkage in the phase also varies sinusoidally. By considering this phenomenon, this paper present a mechanism to implement FOC based on sine pulse width modulation (SPWM) technic for single phase 12S-6P field excited FSM. Experimental results verified successful implementation of the algorithm on the designed prototype of FEFSM. Additionally, performance wise, proposed alg...
2019 15th International Conference on Emerging Technologies (ICET)
The medical device used for auscultation is known as a stethoscope. An ordinary acoustics-based s... more The medical device used for auscultation is known as a stethoscope. An ordinary acoustics-based stethoscope is limited in its ability to provide high-quality sound in noisy environments. To deal with this problem digital stethoscopes have been developed. A digital stethoscope enables the use of advanced noise cancellation techniques resulting in high- quality sound compared to a conventional stethoscope. Currently, conventional stethoscopes are commonly used by physicians due to their low cost compared to the digital ones. This paper presents an Arduino DUE based cost-effective digital stethoscope with real-time realization of cardiac sounds over a graphic display and logging capabilities for post-processing in powerful numerical software such as MATLAB. The proposed design is considerably low-cost compared to the commercially available digital stethoscopes while providing $2.375 \pm 0.222$ dB better signal-to-noise ratio.
2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)
In this paper the electromagnetic flux analysis of dual stator hybrid excitation flux switching m... more In this paper the electromagnetic flux analysis of dual stator hybrid excitation flux switching machines (DS HESFMs) with segmented rotor are presented. The objective of the research is to develop an electric motor for the driven electromechanical actuator meant to use for aerospace applications. The benefit of designing a machine with directly driven system is to entirely remove the transitional gear box arrangements with having lesser component count and reduced jamming possibility. The proposed design of DS HEFSM with segmental rotor is examined in this paper as a potential solution for actuators. The key purposes of the design are to reduce the overall weight, volume and enhance fault tolerance ability. The proposed DS HESFSM design shows simple structure, that includes six number of field excitation coils (FECs) are inserted in outer stator slots with six armature coils (ACs) while, six permanent magnets (PMs) are situated in the inner stator. Besides, DS HESFM structure is investigated at no load and load conditions using "commercial 2D FEA package, JMAG-designer ver. 14.0," released by JSOL Corporation.
2021 International Conference on Artificial Intelligence (ICAI)
This article presents a brief review of machine learning/classification strategies for the classi... more This article presents a brief review of machine learning/classification strategies for the classification of EMG signals in the context of Myoelectric controlled prosthesis. It focuses on certain parameters adopted for machine learning such as selecting the size of windows and frequency range adopted for different filters, the filters of three domains including time domain, frequency domain and time-frequency domain, and the classifiers commonly used and that of different statistical tests performed for evaluating the significant difference between the EMG and performance of features and classifiers. Also, the comparative analysis of different EMG related studies has been done in this article. The paper would contribute to selecting the parameters before evaluating the results using machine learning. The criteria for selection of the papers to present the review is set by looking at the frequently used features and classifiers that have been used by the researchers for EMG signals analysis in the past 2 decades.
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